https://www.nist.gov/publications/fundamentally-mode-locked-yb-er-co-doped-fiber-laser-repetition-rate-860mhz
A fundamentally mode-locked Yb-Er co-doped fiber laser with a repetition rate of 860MHz | NIST
Oct 12, 2021 - We report on the development of a passively mode-locked Yb-Er co-doped fiber laser with a repetition frequency, frep, of 860 MHz.